Machine-wrench.



N0. 785,930. PATBNTED MAR. 28, 1905.

A. O. ANDERSON.

MACHINE WRENCH.

APPLICATION FILED APR.14, 1904.

Z SHEETS-SHEET 1.

PATENTED MAR. 28, 1905.

A. C. ANDERSON. MACHINE WRENCH.

APPLICATION FILED APR.14, 1904.

2 SHEETS-SHEET 2.

I] wan fol A. C. Amaze aaib I 0e17, Qtboimugf UNITED STATES PatentedMarch 28, 1905.

PATENT OFFICE.

ANDREW C. ANDERSON, OF JACKSON, MINNESOTA, ASSIGNOR OF ONE- HALF TO HANSH. ANDERSON, OF JACKSON, MINNESOTA.

MACHINE-WRENCH.

SPECIFICATION forming part of Letters Patent No. 785,: 30, dated March28, 1905.

Application flied April 14, 1904. Serial No. 203,169.

To all IUhUT/L it Hui/y concern:

Be it known that I, ANDREW C. ANDERSON, a citizen of the United States,residing at J ackson, in the county of Jackson and State of Minnesota,have invented certain new and useful Improvements in Machine-\Vrencl1es,of which the following is a specification.

This invention provides a special construction of wrench which isespecially devised for use in connection with threshing-cylinders forremoval of the teeth thereof or for securing said teeth in position.

As is well known, the proximity of the teeth of threshing-cylindersmakes it very diiiicult to remove the nuts from the teeth or to screwthe said nuts upon the teeth with an ordinary wrench or like implement.

It is therefore the essential object of this invention to secure awrench device which will quickly remove the nut from the tooth of athreshing-cylinder, as well as facilitate the screwing of the nut uponsaid tooth.

In the preferred contemplation of my invention the same comprises asupport which is adapted to be quickly attached to the cylinder-barwhich carries the teeth which are to be placed in position or removed,and this support is provided with peculiar operating means in the formof a movable actuator for engagement with the nut or a tooth by whichthe said nut is operated upon for the desired purpose.

For a full description of the invention and the merits thereof and alsoto acquire a knowl edge of the details of construction of the means forefiecting the result reference is to be had to the following descriptionand accompanying drawings.

WVhile the essential and characteristic features of the invention aresusceptible of modilication, still the preferred embodimentof theinvention is illustrated in the accompanying drawings, in which Figure 1is a perspective view of a wrench device embodying my invention. Fig. 2is a detail view of the movable actuator. Fig. 3 is a broken perspectiveview of the shaft and adjacent crank parts. Fig. 4 is a perspective Viewof the guide member cooperating to direct the movement of the movableactuator. Fig. 5 is a detail perspective view of the engaging membercarried by the support and cooperating with the guide member whichdirects the movement of the nut-actuator. Fig. 6 is a vertical sectionalview. Fig. 7 is a second vertical sectional view taken about on the line:0 v of Fig. 8. Figs. 8 and 9 are plan diagrammatic views showing therelative positions of the movable actuator in engaging and disengagingfrom the nut. Fig. 10 is another diagrammatic view illustrating therange of movement of the movable actuator in its engagement with thenut. Fig. 11 is a brokensectional view showing the engagement of theflange of the guide member with the engaging member of the support. Fig.12 is a broken view, partially in section, showing more clearly the formof the handhold and the handle member adapted to be reversed relativethereto.

Corresponding and like parts are referred to in the followingdescription and indicated in all the views of the drawings by the samereference characters.

In the drawings a portion of the cylinderbar 1 is illustrated, thecylinder-teeth 2 being secured thereto in the usual manner by means ofthe nuts 3. My invention comprises, essentially, a head or support 4,adapted to be detachably mounted upon the cylinder-bar 1, which head orsupport constitutes the means for carrying the operating device whichcoacts with the nut 3 of a cylinder-tooth. This support preferablycomprises a block of substantial form, and secured to the upper andlower sides of this head or support 1 are clamp-plates 5, the uppermostof which has pivoted thereto a latch-plate 6, which is adapted toprevent displacement of the support from the bar 1. The latch-plate 6when closed engages a side of the cylinder-bar, and the latter is thusinclosed and clamped in such a manner as to rigidly hold the support 1in position, a spring-catch '7 being secured to the lower or underclamp-plate 5 for engagement with the latch-plate 6 to lock same closed.To remove the support 4 from the bar 1, it is only necessary todisengage the catch 7 from the latch-plate 6 in a manner which will bereadily comprehended.

The operating means carried by the support 4 consists, primarily, of ashaft 8 mounted therein, and a movable actuator 9, which is operablyconnected with the shaft 8. A crank 10 is carried by one end of theshaft 8, and a crank-pin 11, projected from the crank 10, is received bya slotted opening 12 in the actuator 9 aforesaid. The actuator 9 isprovided with a jaw 13, which latter is adapted to engage the nut whichis being operated upon in the movement of the actuator. The actuator 9is adapted for an oscillatory movement, having a pin-and-slotconnection, virtually, with the crank-shaft 8, and this oscillatorymovement, which is imparted by revolution of the shaft 8, causes themember 9 to move toward and from the shaft, so as to alternately engageand disengage therewith. \Vhen the actuator 9 is engaged with the nut atan ascertained pointin its oscillatory movement, it rotates this nut toa certain extent in a direction dependent, of course, upon the directionof revolution of the shaft 8, and hence it will be seen that theactuator 9 may be utilized to either remove the nut 3 with which itcooperates or screw the same into proper position. In order that themovable actuator 9 may be properly directed in its movement, so as toengage the nut at the proper time and with certainty, special guidemeans havebeen designed which are particularly adapted for use inconnection therewith. This guide means consists of a guide member 14,disposed beneath the actuator 9 and provided with longitudinal slots 15.The slots 15 receive guidepins 16, which are projected from the underside of the actuator 9, and these pins moving longitudinally in theslots 15 guide the movement of the actuator with reference to the guidemember 14 aforesaid. Theguide member itself is movably mounted also,being held, however, in an ascertained position with reference to acertain nut by means of an engaging plate 17, which is carried by thesupport 4, this engaging plate being provided adjacent opposite endportions with upwardlyprojecting flanges 18. The flanges 18 are formedintegral with the plate 17, and slightly in rear of each of the flanges18 of this plate is a projection 19, extended upwardly therefrom,between which projection and the adjacent flange 18 is received apendent flange 20, carried by the guide member 14, as shown most clearlyin Fig. 11 of the drawings. The flanges 20 and 18 of the members 14 and17, respectively, are formed on the are of a circle in order that theguide member when the actuator 9 is being oscillated may itself have aslight rotatory movement.

In the movement of the guide member 14 above indicated the end portionof this member, which is disposed adjacent to the nut, so that theactuator will always be directed toward the nut, is held in thisposition by means of the engaging cooperation of its flange 20 with theflange 18 and the projection 19 at one end of the engaging plate 17 Theengaging plate 17 is provided with an opening through which the shaft 8passes, the crankarm 10 of this shaft being located upon the plate 17.The guide member 14, in addition to the corresponding slots 15, is alsoprovided with an open slot 21 of somewhat larger formation within whichthe crank-pin 11 moves in the actuation of the movable member thereby.In the construction herein described it is necessary that the crank-pinhave a slidable engaging relation as regards both the actuator 9 and theguide member 14 for reasons which Will be obvious.

The engaging plate 17 has been described as having independent engagingmembers or flanges 18 and projections 19 located adjacent opposite endsthereof. In the practical application and use of the invention it iscontemplated that the support 4 be secured to the cylinder-bar 1 atpoints between proximal teeth 2. When thus disposed it will be apparentthat it is of immense advantage that the movable actuator 9 be somounted as to be adapted for ready reversal, so as to operate upon theadjacent nuts of the said teeth 2 without making necessary a detachmentof the device and disposal of same in a new position. With the foregoingin view. therefore, the engaging plate is constructed as hereinbeforeset forth in order that the actuator 9, after same has operated upon onenut, may be reversed and disposed so as to to operate upon the nextadjacent nut. The foregoing admits of operation of two nuts withoutmoving the wrench, and therefore a saving of time is resultant,especially when it is known that threshermen usually have to repairtheir threshing-cylinders atnight. To reverse the actuator 9, it is onlyrequisite that the flange 20 of the guide member 14 be disengaged fromone end of the engaging plate 17 and reversed in position, and engagingwith the opposite end after this has been done said actuator willcooperate with the second nut in the same manner aswith the first nutwhich has been already operated upon.

Describing the relative movement of the parts 9 and 14, it may be saidthat as the shaft 8 is rotated the crank-pin 11 thereof imparts anoscillatory movement, as well as a reciprocal movement, to the actuatorbecause of the slidable connection of the pin 11 with the latter. Thereciproeatory movement of the actuator 9 causes same to move intoengagement and out of engagement with the nut, and the oscillatorymovement of the actuator serves to rotate the nut during the movement ofthe same therewith, the movement of the actuator being in the plane ofrotary movement of the pin 11. While the actuator is being moved asabove described the guidemember 14 has imparted thereto a rotatorymovement, the crank-pin 11 moving longitudinally of the slot 21 throughsame. The relative movements are clearly illustrated in Figs. 8, 9, and10. The shaft 8 is revolved by means of a handle member 22, and thelatter comprises a shank which is squared at one end, as shown at 22*,so as to be received in a square socket 22 in the end of the shaft 8aforesaid. The opposite end of the shaft 22 is provided with ahexagonal-shaped socket 22. The handle member 22 when revolved willimpart a like movement, of course, to the shaft 8, and said handlemember 22 is actuated by means of a handhold 23. The handhold hasprojected from one side thereof a hexagonal-shaped extension 24, adaptedto be received by the socket 22 of the handle 22, and upon the oppositeside thereof this handle member is provided with a square socket 23*.The handle member 22 is adapted to be secured to the shaft and thehandhold 23 by means of ordinary transverse pins 25, utilized for thispurpose. The purpose of the construction of the handle member 22 is toadmit of reversal of same when removed from the shaft 8, so as to forman ordinary rigid wrench, which may be utilized to screw nuts ofhexagonal form, such as are used for holding the teeth upon thethreshing-cylinder and the concave adjacent said cylinder. In unscrewingthe nuts of the teeth of the concave the handle member 22 is removedfrom the shaft, and the squared end 22 is inserted into the squaresocket 23 of the handhold and secured in such position. The end of thehandle member 22 provided with the hexagonalshaped socket 22 is thusadapted to receive a nut, so as to screw or unscrew the same from theteeth of the concave. In other words, my wrench device can be readilyutilized, and very advantageously so, for operation upon the nuts of thecylinder, and the operative means in the form of the handle member 22and the handhold 23 may be also utilized to form an ordinarysocket-wrench to operate upon the nuts of the teeth of the concave, theparts being all arranged in a single operative device.

The engaging plate 17 is mounted upon supporting-pins 26, which passthrough openings in the head or support 4, engaging with a bearing-block27 upon the side of the support or head-4 opposite to that adjacentwhich the actuating devices are located. The engaging plate is looselymounted upon the pins 26, which are spaced from each other, and a spring28 is interposed between the engaging plate and the upper clam p-plate5, which is secured to the head or support 4.

In certain instances it is desirable that the actuator 9 be adapted foradjustment toward and from the support 4, so as to cooperate with nuts,which may be a greater or less distance from the cylinder-bar 1. Toadmit of the foregoing, the plate 17 is adjustably mounted as regardsthe support 4, and in order to adjust same in an ascertained positionrelative to the support set-screws 29 are secured to the support and areadapted to engage and clamp against the supporting-pins 26, so as tofixedly position these pins relative to the support. The normal positionof the engaging plate 17, however, is adjacent the support 4, and saidplate is held in this position by means of a mainspring 30 of the coiltype, which is disposed about the shaft 8 and which bears against thebearing-block 27, so as to hold the engaging plate and actuating deviceswhich cooperate with the nut in compact and closed arrangement asregards the head 4. The spring 30 overcomes normally the tension of thespring-28, so as to hold the plate 17 adjacent the head or support 4.When it is desired to move the engaging plate a greater distance fromthe support than that which it assumes when in its normal position, saidplate is forced outward, the tension of the spring 30 being overcome toaccomplish this. When the plate 17 has been adjusted to its properposition, so that the actuator 9 will cooperate withthe nut, theset-screws 29 are manipulated so as to engage the supporting-pins 26 andthe shaft 8. The plate 17 is now held hard against the outer ends of thesupporting-pins by the action of the coil-springs 28. To cause the partsto assume their normal positions, the set-screws 29 are turned so as todisengage from the pins 26 of the shaft, whereupon the tension of thespring 30 forces the shaft and the actuator 9 and adjacent parts so asto move the latter toward the head 4, the tension of the spring 28 beingovercome, as before premised.

Having thus described the invention, what is claimed as new is- 1. In awrench of the class described, the combination of a head or support, ashaft -mounted thereon, a crank extending from said shaft, a crank-pincarried by the crank, and a nut-engaging actuator connected with thecrank-pin and movable in the plane of rotary movement of said pin.

2. In a wrench of the class described, the combination ofa head orsupport, a crankshaft mounted thereon, and an oscillatory actuatoradapted to engage the nut and operated by the crank-shaft aforesaid.

3. In a wrench of the class described, the combination of a head orsupport, a crankshaft mounted thereon, and a movable actuator providedwith a nut-engaging jaw or like part and slidably connected with thecrank of the shaft aforesaid.

4. In a wrench of the class described, the combination of a head orsupport, a crankshaft mounted thereon, a movable actuator provided witha nut-engaging jaw, and a pinand-slot connection between the actuatorand the crank-arm of the shaft aforesaid.

5. In a wrench of the class described, the

combination of a head or support, a crankshaft mounted thereon, amovable actuator operably connected with the crank-shaft, andindependent guide means directing the movement of said actuator.

6. In a wrench of the class described, the combination of a head orsupport, a crank shaft mounted thereon, a movable actuator operablyconnected with the crank-shaft, and guide means carried by the head orsupport and cooperating with the actuator to direct the movement of thelatter.

7. In a wrench of the class described, the combination of a head orsupport, a crankshaft mounted on said head or support, an engagingmember carried by thesupport, a movable actuator operably connected withthe crank-shaft and adapted to engage a nut, and guide means cooperatingwith the engaging member and movable actuator.

8. In a wrench of the class described, the combination of a head orsupport, a crankshaft mounted on said head or support, an en gagingmember carried by the support, a movable actuator operably connectedwith the crank-shaft and adapted to engage a nut, and a movable guidemember cooperating with the engaging member and movable actuator.

9. In a wrench of the class described, the combination of a head orsupport, a crankshaft mounted on said head or support, an engagingmember carried by the support, a movable actuator operably connectedwith the crank-shaft and adapted to engage a nut, and a movable guidemember engaging the movable actuator and the engaging member aforesaidto direct the movement of said actuator.

10. In a wrench of the class described, the combination of a head orsupport, a crankshaft mounted thereon, an engaging member carried by thehead or support, guide means cooperating with said engaging member, anda reversibly movable actuator operably connected with the crank-shaftand adapted to engage a nut.

11. In a wrench of the class described, the combination of a head orsupport, a crankshaft mounted thereon, an engaging plate carried by thesupport, independent engaging members projected from the engaging plateaforesaid, a guide member cooperating with the engaging members of theengaging plate aforesaid, and a reversibly-mounted nutactuator operablyconnected with the crank-shaft.

12. In a wrench of the class described, the combination of a head orsupport, a crankshaft mounted thereon, an engaging plate carried by thesupport, independent engaging members projected from the engaging plateaforesaid, a guide member cooperating with the engaging members of theengaging plate aforesaid, and a reversibly-mounted nut-actu atorcooperating with the independent engaging members of the engaging plate.

13. In a wrench of the class described, the combination of a support orhead, a crankshaft mounted thereon, a guide member, an adjustable guidemember cooperating with the engaging member, and a movable nut-actuatoractuated with the guide member and operably connected with thecrank-sl1aftaforesaid.

1 1. In a wrench of the class described, the combination of a head orsupport, an oscillatory actuator mounted upon said head or support andprovided with an opening therein, and a crank-shaft havinga crank-pinreceived by the said opening of the actuator for actuation thereof.

15. In a wrench of the class described, the combination of a head orsupport, an engaging plate mounted upon said head or support and movabletoward and from the same, a movable actuator, means for fixing theposition of the actuator relative to the engaging plate aforesaid, andmeans for operating said actuator.

16. In a wrench of the class described, the combination of a head orsupport, a crankshaft mounted thereon, a movable actuator operablyconnected with the crank-shaft, and detachable clamp members secured tothe head or support.

17. In a wrench of the class described, the combination of asupport orhead, an engaging plate carried by said head or support, a movable guidemember cooperating with the engaging plate, and a movable nut-actuatorcooperating with the guide member aforesaid and operably connected withthe crank-shaft.

18. In a wrench of the class described, the combination of a head orsupport, a crankshaft mounted thereon, an engaging plate carried by thehead or support, a guide member cooperating with said engaging plate,and a nut actuator slidabl y engaging the guide member aforesaid andoperated by the crankshaft.

19. In a wrench of the class described, the combination of a head orsupport, a crankshaft mounted upon said head or support, an engagingplate carried by said head or support, engaging members projected fromthe engaging plate, a guide member inovably engaging the engagingmembers of the engaging plate, a movable nut-actuator slidably connectedwith the guide member aforesaid and directed in its movement thereby,the crankshaft being operably connected with the actuator and guidemember aforesaid.

In testimony whereof I aflix my signature in presence of two witnesses.

ANDREW c. ANDERSON. [n 5.]

Witnesses:

D. F. CARsoN, A. B. CHEADLE.

